math
In triangle wxy, wy is congruent to xy. the perimeter of triangle wxy is 76 inches. how many inches long is wx?June 22, 2016

Algebra 1
Which statement best demonstrates why the following is a non-example of a polynomial? 33/16 - 62y^2xz-35z^1/3y^2 a. The expression has a variable raised to a negative exponent. b. The expression has a variable in the denominator of a fraction. ** c. The expression has a ...March 30, 2016

Algebra I math
Which statement best demonstrates why the following is a non-example of a polynomial? 33/16 - 62y^2xz-35z^1/3y^2 a. The expression has a variable raised to a negative exponent. b. The expression has a variable in the denominator of a fraction. c. The expression has a negative ...March 30, 2016

Language Arts
Which sentence has correct subject - verb agreement a) casey or robbie are coming to the movies with us b) swimming and skiing is my favorite sports c) sandwhiches or pizza both sounds good for a quick dinner** d) either your brother or his friend is making a lot of noise ...March 2, 2016

science
it has been hypothesized that chloroplasts originated from photosynthetic cyanobacteria that became symbiotic inside a host cell. Which of the following observations provides the strongest evidence for this suggestion? A) microscopically, chloroplast appear similar to ...May 11, 2015

Statistics
A criminologist is studying school violence, she selects a random sample of 25 adolescents aged 12 to 15 from a local middle school and asks the following,"How many times within the past school year have you been physically assaulted at school? She calculated the ...February 27, 2015

Statistics
Suppose we would like to estimate the mean amount of money spent on books by students in the fall semester. We have the following data from 400 randomly selected students: mean=$205 and s=$40. Assume that the amount spent on books by students is normally distributed. Compute a...February 27, 2015

math
Which relationship would most likely have a positive correlation? The amount of memory in computer, and the number of keys on the keyboard. The rate at which a train travels, and the time it takes for it to reach its destination. The number of tickets sold for a baseball game...February 2, 2015

Physics
the charge on a pith ball was measured as +40 nC. if the charge on an electron is -1.6 x 10^-19, how many electrons have been added or removed from the ball?January 31, 2015

Chemistry - PLEASE HELP!!!
A 5.0 g n2o (laughing gas) that is inside a 12 mL cylinder used used to fill up a 800 mL whipped cream container. Beforehand, the container had air in it at 760 torr atmosphere pressure at 25 degrees celsius. Then, we will add the n2o/air mix to balloon until the pressure in ...January 15, 2015

math
Does the Commutative Property apply to this situation? I ate dinner and read a book. I got = Yes.January 14, 2015

math
If Jim is twice as old as Jerry plus six, Jerry is three years older than Tom, and Tom is 12, how old is Jim? I got = Jim is 36January 14, 2015

Math
if x-7=14 what is the value of x-2 Can someone help me with this. I know the answer, I just want to know how something like this is solved.January 8, 2015

Earth science
TRUE OR FALSE The burning of fossil fuels cause the earth to get warmer by putting carbon dioxide in the atmosphere and the carbon dioxide traps heat. MY GUESS: TRUE Isobars help meteorologists find fronts on weather maps. MY GUESS: FALSE A CLOUD IS A COLLECTION OF WATER ...December 22, 2014

Geography
I have an essay that says.. "It has been said that Eastern Europe is a political region more than a physical region. Would you agree or disagree with this statement? You must provide a solid argument for your position." since it asks me for my opinion how do I write ...December 8, 2014

Math
the average of five numbers is 16. Suppose 10 is added to five numbers. What is the average of the six numbers?October 12, 2014

chemistry
Use activity coefficients to find the concentration of hydrogen ions in a solution of 90.0 mM butanoic acid and 0.05 M NaCl. The ionization constant of butanoic acid is Ka = 1.52 × 10-5. Take the size of C3H7COO to be 500 pm. How do I calculate the ionic strength ...October 3, 2014

math
two students are playing a math game . the object of the game is to make the least possible number by arranging the given digits inside absolute value bars on a card . in the first round , each player will use the digits 3,5,and7 to fill in the card. One student arranges the ...September 25, 2014

MATH
I think it's B. The probabilities change every time a bill is pulled out. The probability of pulling out a 1 first is 5 out of 18 which is .227 then the probability of pulling out a 10 is 6 out of 17 because you don't replace the bill. since the events are independent ...June 9, 2014

MATH
I think it's B. The probabilities change every time a bill is pulled out. The probability of pulling out a 1 first is 5 out of 18 which is .227 then the probability of pulling out a 10 is 6 out of 17 because you don't replace the bill. since the events are independent ...June 9, 2014

business
This site will show you what you need http://www.opengroup.org/public/arch/p4/bus_scen/bus_scen.htmJune 8, 2014

algebra
This site shows you how to find terms of the sequence http://www.math-magic.com/sequences/next_term.htmJune 5, 2014

I may fail the 8th grade?
1. Take a deep breath. 2. I may be able to help. 3. post questions on your homework here and either ms.sue will help or me. BTW HELP we wont give you the answers but we will ensure help and explanations and you will get it rightJune 5, 2014

Biology
A virus is a rudimentary biosystem that has some of the aspects of a living system such as having a genome (genetic code) and the ability to adapt to its environment. A virus, however, cannot acquire and store energy and is therefore not functional outside of its hosts. ...June 5, 2014

biology
A capsid is the protein shell of a virus. It consists of several oligomeric structural subunits made of protein called protomers. A prion is an infectious agent composed of protein in a misfolded form.June 5, 2014

Psychology
What may ultimately make an abnormal behavior into a genuine mental disorder is if the behavior: 1. is maladaptive (harmful to self or others) 2. causes significant social impairment 3. causes significant occupational impairment 4. causes great personal pain and emotional ...June 5, 2014

biology
The basic difference is their components. Viruses contain both nucleic acids (DNA or RNA) and a protein coat. Viruses cause infection by inserting their genetic material in a host cell. The host cell then replicates and reads the genetic material, making new viruses that ...June 5, 2014

Algebra
use the 8C3.now, can u evaluate the value of 8C3 ?.nCr = n!/r!(n-r)!it is the general formula of combination. also u have know about the "factorial", like 3! = 3 * 2 * 1 = 6 8C3, in this case knowed n=8 and r=3. by using the formula above, it can be 8C3 = 8!/3!(8-3...June 5, 2014

Measurment
To answer this question, you'll need to find the surface area of the top of the container (which is a circle), along with the surface area of the side of the container.Note that the diameter of the container is given and is 6 inches; therefore, the radius is ... what? Note...June 5, 2014

english
In "A Man Called Horse," After his wife leaves him, Yellow Robe Behaves recklessly in battle because he A. would rather die than live with the bitterness he feels as a result of his lost pride B. is trying to gain membership in the society known as the foxes C. ...May 28, 2014

english
writers portray the personalities of characters A. only through revealing the characters private thoughts. B. through plot complication. C. only if the plot is not important to the story. D. through a variety of methods.May 28, 2014

7 grade math
Consider two types of nonlinear equations. What unique quality does each possess and how does that quality cause the graph's unique shape? Name two unique examples of these shapes in real-world situations.May 27, 2014

engineering
In the question I have some strenths and w/c ratios of some specimens and it is asking me about the range,molds?Also,How many specimens should be taken for each batch of concrete? This is a question before we learn it,so really have some understanding problems.May 4, 2014

engineering
Hello guys.I got a homework and seem like I am stocked. a)What type of experiments should be done to find the relationship between the strength of concrete and water/cement ratio. b)what will be the range of the water/cement ratio? It would be great if you help.Thank you!May 4, 2014

physics
Imagine that F₂ is along the x-axis, F is along y-axis, and F₁ is directed to the north-west. The angle between F and F₁ is α. sin α = F₂/ F₁=1/2 α=30° Thus, the angle between F₁ and F₂ is 90°+30&deg...April 19, 2014

Physics
If the detector (radar)is at rest and the source (moving car that reflects the sound)) is moving away from the detector, the observed frequency f is less than the actual frequency f₀. The speed of sound v =343 m/s f=f₀v/(v+V) V=v(f₀-f)/f =343(1.5-1.4)...April 14, 2014